EP 2971818 A1 20160120 - BEARING APPARATUSES INCLUDING DUAL MATERIAL BEARING SURFACES
Title (en)
BEARING APPARATUSES INCLUDING DUAL MATERIAL BEARING SURFACES
Title (de)
LAGERVORRICHTUNGEN MIT ZWEI MATERIALLAGERFLÄCHEN
Title (fr)
APPAREILS DE PALIER COMPRENANT DES SURFACES D'APPUI À DOUBLE MATÉRIAU
Publication
Application
Priority
- US 201313792778 A 20130311
- US 2014017479 W 20140220
Abstract (en)
[origin: US2014254967A1] Embodiments of the invention relate to bearing apparatuses in which one bearing surface of the bearing apparatus includes diamond, while another bearing surface includes a non-diamond superhard material (e.g., silicon carbide). For example, a bearing apparatus may include a bearing stator assembly and a bearing rotor assembly. The bearing stator assembly and bearing rotor assembly each include a support ring and one or more superhard bearing elements generally opposed to one another. The bearing surface(s) of the rotor or stator may include diamond, while the bearing surface(s) of the other of the rotor or stator do not include diamond. Another bearing apparatus may include both thrust- and radial bearing components. The generally opposed thrust-bearing elements may include diamond, while the generally opposed radial bearing elements may not include diamond, but include a non-diamond superhard material, such as silicon carbide.
IPC 8 full level
F16C 33/04 (2006.01); E21B 4/00 (2006.01); F16C 17/10 (2006.01); F16C 33/10 (2006.01); F16C 33/26 (2006.01); F16C 43/02 (2006.01)
CPC (source: EP US)
E21B 4/003 (2013.01 - EP US); F16C 17/10 (2013.01 - EP US); F16C 17/107 (2013.01 - US); F16C 33/043 (2013.01 - EP US); F16C 33/108 (2013.01 - EP US); F16C 33/24 (2013.01 - US); F16C 33/26 (2013.01 - EP US); F16C 43/02 (2013.01 - EP US); F16C 2202/20 (2013.01 - EP US); F16C 2206/04 (2013.01 - EP US); F16C 2206/40 (2013.01 - EP US); F16C 2352/00 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 2014254967 A1 20140911; US 9127708 B2 20150908; EP 2971818 A1 20160120; EP 2971818 B1 20191211; EP 3608554 A1 20200212; EP 3608554 B1 20211110; US 10683889 B2 20200616; US 11448259 B2 20220920; US 11859660 B2 20240102; US 2015345557 A1 20151203; US 2017276171 A1 20170928; US 2020256379 A1 20200813; US 2023078021 A1 20230316; US 2024159268 A1 20240516; US 9702401 B2 20170711; WO 2014149342 A1 20140925
DOCDB simple family (application)
US 201313792778 A 20130311; EP 14709819 A 20140220; EP 19197471 A 20140220; US 2014017479 W 20140220; US 201514826121 A 20150813; US 201715618473 A 20170609; US 202016862159 A 20200429; US 202217890036 A 20220817; US 202318511006 A 20231116